Patent assignee · US · COMPANY

O2Micro Inc.

243Patents
229Active
243Granted
61Portfolio score

Filing activity: May 29, 2001 → Jan 25, 2024 · 104 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8378589B2 Driving circuit with dimming controller for driving light sources Emerging Cross-Sectional Technologies 124 Active
US9030122B2 Circuits and methods for driving LED light sources Electricity 109 Active
US8378588B2 Circuits and methods for driving light sources Emerging Cross-Sectional Technologies 95 Active
US8044608B2 Driving circuit with dimming controller for driving light sources Emerging Cross-Sectional Technologies 83 Active
US8076867B2 Driving circuit with continuous dimming function for driving light sources Emerging Cross-Sectional Technologies 81 Active
US8890440B2 Circuits and methods for driving light sources Electricity 71 Active
US8339067B2 Circuits and methods for driving light sources Emerging Cross-Sectional Technologies 70 Active
US8482219B2 Driving circuit with dimming controller for driving light sources Emerging Cross-Sectional Technologies 65 Active
US8339063B2 Circuits and methods for driving light sources Electricity 64 Active
US8698419B2 Circuits and methods for driving light sources Electricity 59 Active
US8508150B2 Controllers, systems and methods for controlling dimming of light sources Emerging Cross-Sectional Technologies 56 Active
US7969043B2 Power management systems with multiple power sources Electricity 37 Active
US8508142B2 Portable lighting device and method thereof Electricity 35 Active
US9386653B2 Circuits and methods for driving light sources Emerging Cross-Sectional Technologies 31 Active
US8502503B2 Circuits and methods for protection of battery modules Emerging Cross-Sectional Technologies 31 Active
US7919936B2 Driving circuit for powering light sources Electricity 30 Active
US8410711B2 Circuits and methods for driving light sources Emerging Cross-Sectional Technologies 28 Active
US8111017B2 Circuits and methods for controlling dimming of a light source Emerging Cross-Sectional Technologies 27 Active
US7126289B2 Protection for external electrode fluorescent lamp system Emerging Cross-Sectional Technologies 27 Expired
US8219333B2 Battery management systems for protecting batteries from fault conditions Emerging Cross-Sectional Technologies 27 Active
US9071049B2 System and methods for protection of battery modules Emerging Cross-Sectional Technologies 25 Active
US7173402B2 Low dropout voltage regulator Physics 25 Expired
US6895448B2 Low-power audio CD player for portable computers Emerging Cross-Sectional Technologies 24 Expired
US8248439B2 Backlight controller for driving light sources Emerging Cross-Sectional Technologies 22 Active
US8242742B2 Chargers, systems and methods for detecting a power source Electricity 21 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.